NE4T Series Analogue: Hydraulic thermostat control. Temperature range: ambient -99 ºC . Sensitivity ±0.2 ºC . Uniformity ±0.05 ºC. NE4D Series Digital: Electronic control. Temperature range: 0-99.9 ºC Sensitivity ±0.1 ºC. Uniformity ±0.01 ºC. All baths supplied contain a 304 spec (18/8) Stainless steel crevice-free tank, bridge unit and shelf.